EP1049522A1 - Systeme de guidage pour planches a quatre roulettes - Google Patents

Systeme de guidage pour planches a quatre roulettes

Info

Publication number
EP1049522A1
EP1049522A1 EP98939463A EP98939463A EP1049522A1 EP 1049522 A1 EP1049522 A1 EP 1049522A1 EP 98939463 A EP98939463 A EP 98939463A EP 98939463 A EP98939463 A EP 98939463A EP 1049522 A1 EP1049522 A1 EP 1049522A1
Authority
EP
European Patent Office
Prior art keywords
board
handlebar
neck
steering
flexible
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP98939463A
Other languages
German (de)
English (en)
Inventor
Thomas Allmendinger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1049522A1 publication Critical patent/EP1049522A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/01—Skateboards
    • A63C17/011—Skateboards with steering mechanisms
    • A63C17/013—Skateboards with steering mechanisms with parallelograms, follow up wheels or direct steering action
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/01—Skateboards
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/01—Skateboards
    • A63C17/014—Wheel arrangements
    • A63C17/015—Wheel arrangements with wheels arranged in two pairs
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C2203/00—Special features of skates, skis, roller-skates, snowboards and courts
    • A63C2203/06—Special features of skates, skis, roller-skates, snowboards and courts enabling conversion into another device
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C2203/00—Special features of skates, skis, roller-skates, snowboards and courts
    • A63C2203/52—Direct actuation of steering of roller skate or skateboards, e.g. by a foot plate

Definitions

  • the invention relates to a steering system for a four-wheeled roller board according to the preamble of patent claim 1, a preferred embodiment of such a rolling board according to the preamble of patent claim 2, and a foldable steering rod according to the preamble of patent claim 9.
  • skateboards Commercial four-wheeled roller boards (so-called skateboards) are controlled by shifting weight. For this purpose, they contain special, flexibly suspended axles, which change their orientation when subjected to lateral loads, i.e. during a tilting movement, similar to two-axle roller skates. Such roller boards usually have no handlebars and are quite difficult to drive. In addition, the axle construction in question means that the distance between the floor and the board surface becomes relatively large.
  • roller boards with axes of this type are also known, where the board is also provided with a handlebar which can be folded backwards / downwards when not in use, but is rigidly connected.
  • handlebar which can be folded backwards / downwards when not in use, but is rigidly connected.
  • Patents 4,775,162 and 4,951,958 it was proposed to connect the front axle via an arm to a rotatable handlebar, so that it becomes pivotable and enables oscillatory movement.
  • a somewhat more primitive implementation of this idea has already been proposed for toys in UK Patent Application No. 2,048,180 to facilitate driveability and steerability.
  • independent wheel suspensions are also conceivable.
  • the board can be made from one piece or from two parts which are connected to one another via a neck so as to be rotatable or pivotable.
  • a separately rotatable front axle must be provided, while the rear axle is rigidly mounted.
  • the front axle is rigidly connected to the front and the rear axle is rigidly connected to the rear board part, and the steering is carried out by rotating or pivoting the front board part.
  • a handlebar is provided, which is mounted on the front axle or on the rotatable or pivotable front part of the board connected to it.
  • the handlebar can be mounted on the top of the front part of the board, which is a design advantage.
  • the steering is therefore not by turning the handlebar like a steering wheel, but by tilting like a joystick.
  • this method has the disadvantage that the tilt angle of the handlebar is only coupled with the deflection of the front axle, but not with the driving speed.
  • you automatically tend to make a movement corresponding to a steering wheel with your hands and upper body which is not possible here.
  • the previously known roller boards with handlebars therefore have more or less serious disadvantages, be it that the handling properties of conventional skateboards and in particular their relatively large board distance to the floor are essentially retained, or that the handlebars cannot be tilted sideways in the curves or be it that any tilting of the handlebar produces a steering effect that is independent of the speed.
  • the object of the present invention is to create a steering for four-wheeled roller boards by means of a special handlebar, which does not have these disadvantages and which also includes the possibility of simply folding the handlebar when not in use.
  • a rotatable - and not a swiveling - front part is preferred for reasons of driving technique and driving safety.
  • This can be accomplished in that a neck provided on the undersides of the board parts is rigidly connected to the rear board part and rotatably connected to the front board part via a vertically arranged axis (axis of rotation).
  • the axis of rotation is preferably fixed in the front part of the board and rotatably connected to the neck via a ball bearing.
  • the neck can be extended to the rear and at the same time used to at least partially hold the rear axle by providing it with a suitable hole horizontally. It is recommended, however, that the rear axle at its ends, i.e.
  • the extension of the neck to the rear end of the board also has the advantage of being able to serve as a slide bar on the underside of the board when crossing obstacles such as curbs.
  • POM polyoxymethylene; eg Ertacetal ®
  • the neck At least in the front, supporting area, the neck must be made of a relatively hard, robust material.
  • a plastic is also suitable for this, preferably POM.
  • the underside of the front board part is provided with a lubricious layer in the region of rotation of the neck, preferably with a film or plate made of polyamide.
  • a total board length (front and rear part together) of 650 to 750 mm a width of approx. 60 mm and a thickness of approx. 20 mm are recommended as dimensions for the neck and its extension to the rear (with a rear axle diameter of 12 mm ). Since in this embodiment the front board part including the front axle is rotatably provided, the latter, if it should not get in the way of the neck, must have a deflection in the area of the axis of rotation or the neck.
  • a sufficiently stable board especially if it is made of aluminum, for example - it may also be sufficient to let the two axle parts into corresponding holding blocks provided below.
  • the board and holding blocks can also be cast in one piece.
  • Ren area of the handlebar an anisotropic-flexible intermediate piece or a corresponding fastener to be provided, which allows it to tip on both sides, i.e. perpendicular to the direction of travel, while tilting forward or backward, i.e. in the direction of travel, not or practically may not be possible.
  • Anisotropy is the directional dependence of a physical property, here flexibility.
  • this tipping must not be irreversible; rather, the handlebar has to straighten itself up when it is released, ie the intermediate piece in question has to behave like a spring in this respect, ie it has to be elastic.
  • Such an anisotropically flexible, elastic intermediate piece in the handlebar significantly improves the driving behavior of such roller boards in the bends by allowing it to lie in the bends and to guide the handlebars.
  • this lateral tilt does not necessarily influence the steering process, but is mechanically independent of it.
  • no special precautions are taken and the handlebar is rigidly connected to the rotating or swiveling front axle, problems arise when driving in the curves.
  • a preferred possibility is to start from a POM round rod with an 18 mm diameter, halve it in the longitudinal direction and place an 18 mm wide, preferably 1.8 - 2 mm thick spring steel strip between the two parts with a crescent-shaped cross section.
  • the surface of the leaf spring band must be provided parallel to the direction of travel, so that the handlebar can only be bent to the side.
  • an anisotropically flexible, elastic intermediate piece in addition to this preferably proposed embodiment of an anisotropically flexible, elastic intermediate piece, other embodiments are also conceivable, for example in the form of a sandwich-like agglomerate of leaf springs made of metal - for example of four 1 mm thick leaf springs - and / or made of plastic, the cross section of the agglomerate being round , square or rectangular.
  • a - albeit less elegant - solution in the form of a hinge provided with a return spring would also be conceivable.
  • the foot of the handlebar, in which the anisotropically flexible, elastic intermediate piece is embedded does not have a round cross section, as seen from above, but a square or rectangular cross section. By providing a hole therein, a round elastic intermediate piece can be easily inserted.
  • the handlebar can be folded backwards / downwards in a simple manner and fixed in the folded state.
  • This can best be achieved if the handlebar is essentially L-shaped at the bottom, whereby no strict angular shape is required, but also an approximately right-angled bend is possible.
  • a hinge can be provided at the rear end of the horizontal bar of the L, while at the front end, i.e. in the area of the angle of the L or the bend of the handlebar present there, a snap lock and a locking element on the (long) vertical bar can be - preferably in the form of a magnet or a clip - which, when folded, fits onto a corresponding counterpart at the rear end of the rear board part.
  • the fixation should not only take place on one side, but centrally on the handlebar, which, for reasons of space, suggests that the release lever or button be provided in front of the handlebar.
  • This can preferably be accomplished by providing a plate in the approximate shape of a bird, which has a pivot point in the leg area and a spring between the leg area and tail, and which is arranged such that the tail is in the direction of travel and the beak is in the back points, where he touches the handlebar at its lower front part, i.e. just above the angle of the L, and hooks it onto a suitable counterpart, thereby locking the handlebar, and that this locking can be released by the user by pressing on the tail of the bird-shaped plate .
  • Fig. 1 the underside of a preferred roller board
  • 5a shows an anisotropically flexible, elastic intermediate piece with a round cross section and a narrower leaf spring at the edge
  • 5b shows an anisotropically flexible, elastic intermediate piece with a round cross section and a narrower internal leaf spring
  • 5c shows an anisotropically flexible, elastic intermediate piece with a round cross section and flush leaf spring
  • FIG. 6 shows an anisotropic-flexible, elastic intermediate piece with a round cross-section and a jacket tube in the bending area embedded in a handlebar
  • Front axle 4 positioned, which is a preferred arrangement. 7 represents the rigidly connected to the extension of the neck and - preferably via ball bearings - with wheels
  • the front part 1 is also preferably provided with an approximately 1 mm thick sliding layer, for example made of polyamide.
  • Fig. 2 shows a preferred embodiment for the front axle, which can be let in thanks to a deflection in the front part of the board and thereby has a free space 9 for the neck.
  • the deflection consists essentially of the solid band-shaped plate 10, which is laterally connected to the support elements 11 and thereby forms an n-shaped profile.
  • the support elements are connected to the short axle pieces 12, to which the wheels are mounted, preferably via ball bearings.
  • the whole is best made in one piece, preferably of stainless steel or aluminum with embedded steel axes 12.
  • 3 shows an essentially L-shaped handlebar 13, consisting of the horizontal bar 13a and the vertical bar 13b and equipped with the most important elements according to the invention.
  • the anisotropically flexible, elastic intermediate piece 14 is of central importance here.
  • a hinge component 15 and a counterpart 16 for the snap-lock counterpart shown in FIG. 4 are also attached.
  • a magnet or a magnetizable body 17 is also attached.
  • a handlebar 18 with handles is placed on the upper end of the handlebar.
  • the handlebar is mounted via an axis passing through the hinge part 15 to holders provided on both sides and fastened to the front part of the board (not shown here).
  • beams with a triangular cross-section or workpieces with a rectangular profile, which are aligned parallel to the horizontal part of the L, are preferred.
  • Fig. 4 shows the central part of the preferably proposed snap lock. It is formed by a plate in the approximate shape of a bird, which has an axis of rotation 19 in the leg area and an outlet 21 for a spring supported or fastened on the board between the leg area and tail 20.
  • the beak 22 fits exactly into the counterpart 16 of Fig. 3.
  • the bird-shaped plate can be attached via the axis 19 to the front part of the holder already on the board for the handlebar.
  • the board is advantageously covered with a soft base, preferably with an approximately 1 mm thick rubber plate, at the location of the support of the handlebar.
  • the snap lock snaps out when you press the tail of the bird-shaped plate and automatically snaps back in when the handlebar is raised and pushed forward.
  • FIG. 5 shows a side view of three possible embodiments of the anisoptrop-flexible, elastic intermediate piece, consisting of a (plastic) round rod 23 and a left leaf spring band 24 or 24 '.
  • 5a shows the variant where the leaf spring band is narrower than the round rod and is inserted into a longitudinal slot of the round rod
  • FIG. 5b illustrates an embodiment with cast-in leaf spring band.
  • Fig. 5c finally shows the variant of a leaf spring band, which is the same width as the round rod, which is cut into two equally large, half-moon-shaped halves.
  • FIG. 6 shows how an anisotropically flexible, elastic intermediate piece with a round cross section, consisting of a round rod 23 and a leaf spring band 24 'flush with it, can be inserted into the handlebar parts 25a and 25b.
  • a jacket tube 28 made of plastic is also attached, which has the same outer diameter as the handlebar.
  • the proposed steering for a four-wheeled roller board has considerable advantages over the steering principles previously used: thanks to a front axle that can be rotated via a handlebar and an anisotropically flexible, elastic intermediate piece provided in the lower region of the handlebar, it is possible to lie in the curves depending on the speed and to carry the handlebars without directly influencing the steering direction.
  • the wheel axles are rigid and are provided directly below the footboard parts so that they come close to the ground. This makes driving much easier than with conventional skateboards, including those with a handlebar.
  • a simple snap lock enables immediate locking or quick unlocking of the handlebar by foot or by hand.
  • the rigid rear axle also makes it easy to provide a brake.

Abstract

L'invention concerne un système de guidage à l'aide d'une tige directrice pour une planche à quatre roulettes, de préférence du type constitué de deux parties reliées entre elles de manière rotative par une douille. La caractéristique principale du système de guidage consiste en ce qu'une pièce intermédiaire élastique (14) à souplesse anisotrope est disposée à son extrémité inférieure. Ainsi, la tige directrice peut être inclinée vers la gauche et vers la droite, mais pas vers l'arrière ni vers l'avant. Le skater peut ainsi s'incliner dans les virages et tirer le guidon vers l'intérieur en conséquence. En outre, la tige directrice se replie aisément vers l'arrière/vers le bas et se fixe à l'extrémité postérieure de la planche à roulettes où elle est bloquée par encliquetage lors de l'utilisation de la planche.
EP98939463A 1997-08-31 1998-08-31 Systeme de guidage pour planches a quatre roulettes Withdrawn EP1049522A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH203497 1997-08-31
CH203497 1997-08-31
PCT/CH1998/000374 WO1999011338A1 (fr) 1997-08-31 1998-08-31 Systeme de guidage pour planches a quatre roulettes

Publications (1)

Publication Number Publication Date
EP1049522A1 true EP1049522A1 (fr) 2000-11-08

Family

ID=4224384

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98939463A Withdrawn EP1049522A1 (fr) 1997-08-31 1998-08-31 Systeme de guidage pour planches a quatre roulettes

Country Status (3)

Country Link
EP (1) EP1049522A1 (fr)
AU (1) AU8796698A (fr)
WO (1) WO1999011338A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8944440B2 (en) 2012-09-13 2015-02-03 John Elkinton Rider controllable skimboard

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2953389A (en) * 1958-11-10 1960-09-20 Max L Green Child's scooter and brake construction
GB2048180B (en) 1979-04-12 1983-10-19 Watson Hardware Ltd F Toy scooter
DE8517109U1 (de) * 1985-06-12 1985-09-05 Klar, Hartmuth, Dipl.-Ing., 4600 Dortmund Skate - Board - Roller
US4707884A (en) 1986-06-06 1987-11-24 Chang San T Foldable handle for a skateboard
US4775162A (en) 1987-07-24 1988-10-04 Sun Craft Industrial Co., Ltd. Swingable skateboard
US4951958A (en) 1987-07-24 1990-08-28 Chao Jung H Swingable skateboard with two brake assemblies
US5221111A (en) * 1991-03-06 1993-06-22 Younger Roger L Skateboard accessory to assist in airborne maneuvers
CH688178A5 (de) 1993-09-20 1997-06-13 Ligten Robert Hermanus Van Lenkbares, zusammenfaltbares Rollbrett mit der Moeglichkeit, Gepaeck mitzufuehren.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9911338A1 *

Also Published As

Publication number Publication date
WO1999011338A1 (fr) 1999-03-11
AU8796698A (en) 1999-03-22

Similar Documents

Publication Publication Date Title
DE69834427T2 (de) Rollbrett
DE60024235T2 (de) Rollschuh
DE60019568T2 (de) Konvertierbares rollbrett/roller
DE69931258T2 (de) Umwandelbarer rollschuh
WO1998025677A1 (fr) Planche a roulettes et son frein a pied
WO1995008466A1 (fr) Voiture a bras pour le transport de personnes et/ou de bagages
DE2313262C2 (de) Mehrspuriger Schlitten
DE202005015120U1 (de) Sattelzug oder Anhänger mit verbesserter Lenkung
DE3506026C2 (fr)
DE102007031237B4 (de) Kippwinkel-gelenktes Rollgerät mit versetzten Rollen
EP1049522A1 (fr) Systeme de guidage pour planches a quatre roulettes
DE19849261A1 (de) An einen Kinderwagen anschließbare, fahrbare Tragevorrichtung mit einer Fußplattform
DE202012007192U1 (de) Nutzfahrzeug
DE102012214930B4 (de) Fahrzeug
DE60115764T2 (de) Fusskraftbetriebenes Radfahrzeug
EP1130983B1 (fr) Valise
EP0628465B1 (fr) Article de sport
DE60204020T2 (de) Leichtes freizeitfahrzeug vom rollbrett-typ
DE102022201256B3 (de) Elektrisch antreibbarer Lastenroller
DE4223114A1 (de) Sportgerät
DE19633061C1 (de) Tretroller
DE3701252A1 (de) Schlitten mit verkantbaren kufen
DE8206828U1 (de) Geraet fuer die benutzung als ski-schlitten"
AT413276B (de) Zweispuriges fahrzeug nach art eines schlittens
DE202005020068U9 (de) Laufrad für Kinder

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20000628

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20030301

REG Reference to a national code

Ref country code: HK

Ref legal event code: WD

Ref document number: 1033812

Country of ref document: HK